Restored save_vlen as it was
Restored save_vlen as it was


Former-commit-id: dbf11a24c9fda1f5f67b5498bcec246f56c249a9 [formerly 8ca2edf8cc82dafa48af34b48c532fd84fca8ee9]
Former-commit-id: 64db4e65eb585c45e7afd3d161735ef458997e32
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine